What is the main ingredient in food coloring?

Per McCormick.com, the ingredients in their yellow food coloring are as follows:


WATER, PROPYLENE GLYCOL, FD&C YELLOW 5, 0.1% PROPYLPARABEN (PRESERVATIVE), AND FD&C RED 40


Per the FDA, ingredients are listed in order of predominance, therefore, in this example, water would be the main ingredient.